English
Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

The zero of the polynomial 2x + 5 is - Mathematics

Advertisements
Advertisements

Question

The zero of the polynomial 2x + 5 is

Options

  • `5/2`

  • `-5/2`

  • `2/5`

  • `-2/5`

MCQ
Advertisements

Solution

`-5/2`

Explanation;

Hint:

2x + 5 = 0

⇒ 2x = −5

⇒ x = `-5/2`

shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Algebra - Exercise 3.15 [Page 134]

APPEARS IN

Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 3 Algebra
Exercise 3.15 | Q 5 | Page 134

RELATED QUESTIONS

Find p(0), p(1) and p(2) for the following polynomial:-

p(x) = x3


Verify whether the following zeroes of the polynomial, indicated against them.

`p(x) = 3x + 1, x = -1/3`


Find the zero of the polynomial in the following case:

p(x) = 3x – 2


Find the zero of the polynomial in the following case:

p(x) = 3x


Find the zero of the polynomial in the following case:

p(x) = ax, a ≠ 0


Find the zero of the polynomial in the following case:

p(x) = cx + d, c ≠ 0, c, d are real numbers.


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f ( x ) = 3x +1, x = - 1/3`


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f(x)=x^2- 1,x=1,-1`


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f ( x ) = 5x - pi , x = 4/5`


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f ( x) = x^2and x = 0`


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f(x) = lx + m , x = - m/1`


Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:

`f (x) = 2x +1, x = 1/2`


Find the value of the polynomial 5x – 4x2 + 3 at x = –1.


Find the value of the polynomial 5x – 4x2 + 3 at x = 2.


Find the zero of the polynomial of the following:

p(x) = ax when a ≠ 0


Verify whether the following are zeros of the polynomial, indicated against them, or not

p(x) = ax + b, x = `(-"b")/"a"`


Find the number of zeros of the following polynomial represented by their graph


Zero of the zero polynomial is ______.


Find p(0), p(1), p(–2) for the following polynomial:

p(x) = 10x – 4x2 – 3


Find p(0), p(1), p(–2) for the following polynomial:

p(y) = (y + 2)(y – 2)


–3 is a zero of x – 3


`-1/3` is a zero of 3x + 1


Find the zeroes of the polynomial in the following:

p(x) = x – 4


Find the zeroes of the polynomial in the following:

q(x) = 2x – 7


If a, b, c are all non-zero and a + b + c = 0, prove that `a^2/(bc) + b^2/(ca) + c^2/(ab) = 3`.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×